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<div class="dropdown">
                    <div class="select_choise">
                        <a href="#"><span>Nhân viên</span></a>
                    </div>
                    <div class="select_hidden">
                        <ul>
                            <li><a href="#"><span>Filter Cấp 3</span></a></li>
                            <li><a href="#"><span>Filter Cấp 3</span></a></li>
                            <li><a href="#"><span>Filter Cấp 3</span></a></li>
                        </ul>
                    </div>
                </div>
                <div class="dropdown">
                    <div class="select_choise">
                        <a href="#"><span>Nhóm / Phòng ban</span></a>
                    </div>
                    <div class="select_hidden">
                        <ul>
                            <li><a href="#"><span>Ban Điều Hành</span></a></li>
                            <li><a href="#"><span>Nhóm IT</span></a></li>
                            <li><a href="#"><span>Filter Cấp 3</span></a></li>
                        </ul>
                    </div>
                </div>